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Codec: avc1.4d0428

86.43% Encoder Support
1,857,457 of 2,148,989 sessions supported encoding
99.81% Decoder Support
2,093,974 of 2,098,065 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 4
Maximum Resolution 1080p (1920×1080)
Maximum Bitrate 20 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,148,989 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.4% 862,849 / 868,094 99.74% 100,467 / 100,725 — 97.39% 632,502 / 649,458 96.59% 42,088 / 43,572
SafariSafari
 — 1.49% 722 / 48,391 1.85% 4,036 / 218,110 — —
EdgeEdge
 99.84% 143,505 / 143,728 100.0% 1,409 / 1,409 — 99.3% 4,134 / 4,163 98.82% 672 / 680
FirefoxFirefox
 95.81% 51,324 / 53,568 99.92% 7,407 / 7,413 — 2.0% 2 / 100 98.71% 5,979 / 6,057

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,098,065 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 845,520 / 845,721 99.78% 96,863 / 97,073 — 99.65% 637,301 / 639,522 98.33% 41,666 / 42,375
SafariSafari
 — 99.86% 46,943 / 47,008 99.98% 212,467 / 212,517 — —
EdgeEdge
 99.99% 139,737 / 139,745 100.0% 1,372 / 1,372 — 100.0% 4,097 / 4,097 98.96% 669 / 676
FirefoxFirefox
 99.96% 51,705 / 51,727 99.9% 7,182 / 7,189 — 2.08% 2 / 96 98.44% 5,747 / 5,838